#ifndef __M_UTIL_H__
#define __M_UTIL_H__

// 实用工具类设计：
// 获取系统时间
// 判断文件是否存在
//  获取文件的所在目录路径
//  创建目录

#include <iostream>
#include <ctime>
#include <sys/stat.h>

namespace PRJLOG
{
    namespace util
    {
        class Date
        {
        public:
            static size_t nowtime()
            {
                return (size_t)time(nullptr);
            }
        };
        class file
        {
        public:
            static bool exists(const std::string &pathname)
            {
                struct stat st;
                return (stat(pathname.c_str(), &st) == 0);
            }

            static std::string path(const std::string &pathname)
            {
                //./a.out
                size_t pos = pathname.find_last_of("/\\");
                if (pos == std::string::npos)
                    return ".";
                return pathname.substr(0, pos + 1);
            }

            static void createDirectory(const std::string &pathname)
            {
                //./abc/cde/abc
                size_t pos = 0, idx = 0;
                while (idx < pathname.size())
                {
                    pos = pathname.find_first_of("/\\", idx);
                    if (pos == std::string::npos)
                    {
                        mkdir(pathname.c_str(), 0777);
                    }
                    std::string parent_dir = pathname.substr(0, pos + 1);
                    if (!exists(parent_dir))
                    {
                        mkdir(parent_dir.c_str(), 0777);
                        idx = pos + 1;
                    }
                    idx = pos + 1;
                    continue;
                }
            }
        };
    }
}

#endif